Speaker



FIG. 1 is a front perspective view of the speaker in accordance with the present design;

FIG. 2 is a rear perspective view of the speaker shown in FIG. 1;

FIG. 3 is a front view of the speaker shown in FIG. 1;

FIG. 4 is rear view of the speaker shown in FIG. 1;

FIG. 5 is a right side view of the speaker shown in FIG. 1;

FIG. 6 is a left side view of the speaker shown in FIG. 1;

FIG. 7 is a top view of the speaker shown in FIG. 1; and,

FIG. 8 is a bottom view of the speaker shown in FIG. 1. 

The ornamental design for a speaker, substantially as shown and described. 